Space deficiency in a crowded dentition is a main indication for premolar extraction therapy. Class I malocclusions with severe crowding in non growing patients can be treated by upper lower first premolar extraction using an edgewise technique with multi loop edgewise arch wire (MEAW). The following case report describes a patient with severe tooth crowding, where the result of the treatment was acceptable and relatively stable. It was concluded that the elimination of tooth tissue discrepancy by the extraction of first premolars provides a good means in the treatment of crowding malocclusions. DOI: http://dx.doi.org/10.3329/bjodfo.v2i2.16161 Ban J Orthod & Dentofac Orthop, April 2012; Vol-2, No.2, 30-33
Objective: The objective of this study was to establish cephalometric norms of Bangladeshi children age range (10-13years) and to compare it with accepted standards for the Caucasian population according to Steiner analysis. Methods: Fifty healthy Bangladeshi children both male and female, with a mean age of 12.3 years, were selected from different schools of Dhaka. Selection was made on the basis of normal occlusion, balanced and pleasing profile with no obvious facial asymmetry. None of the children have undergone orthodontic treatment prior to this study. Lateral skull cephalograms were taken and traced using a standardized technique. Each cephalogram was traced twice with a one week interval by the authors. All angular and linear measurements were calculated to the nearest 0.5 degree and 0.5 mm, respectively. Steiner's method of cephalometric analysis was used to establish cephalometric norms. Results: A comparison of the results with the Steiner standards showed that the Bangladeshi children were more protrusive skeletally and dentally with a greater tendency towards bimaxillary protrusion. Further, there was a decrease in the lower facial height. Conclusion:The results of the study support the fact that norms and standards of one racial group could not be used without modification for other racial group and each different racial group would have to be treated according to its individual characteristics.
Case report of an adult Bangladeshi male aged 26 years who complained about ineffective chewing of food and unpleasant aesthetic look. The patient was diagnosed to have a 4 mms of anterior dental open bite on skeletal Class I with normal mandibular plane and palatal plane angles. Treatment was orthodontics alone with non-extraction. The main mechanics used to close the anterior open bite, were by the conventional aligning, leveling and arch contraction by standard edgewise technique. The result showed that it was possible to correct the open bite within a short period; however, the appliance was difficult to clean. The treatment was complete after 2 years with positive overbite of 3 mms and acceptable occlusion. The patient was happy with his new appearance and function.
Cephalometric radiography is the most significant tool for improving taxonomy, communication and analysis of dentofacial variation, as in orthodontic evaluation and treatment, analysis of craniofacial morphology is essential. Steiner's analysis was used in this study; because its methods of assessing skeletal and dental morphology are very useful and valid providing maximal clinical information with the least number of measurements. The objective of this study was to describe the craniofacial pattern of Bangladeshi young adults and to compare it with accepted standards for the Caucasian population according to Steiner analysis. The study will also evaluate morphological differences between male and female Bangladeshi normal occlusion subjects. This is a cross-sectional observational study having both descriptive and analytical components. The study was conducted in Dhaka Dental College and Hospital on 52 Bangladeshi young adults (27male and 25 females), aged 21-27 years, having balanced harmonious facial profiles, clinically acceptable occlusion with permanent dentition and no history of orthodontic treatment. Lateral cephalometric radiographs of these subjects were used for a series of cephalometric analyses. All the measurements were computed statistically. The study findings show that Bangladeshi subjects were more protrusive skeletally and dentally than Caucasians with a greater tendency towards bimaxillary protrusion. Furthermore, the mandibular plane angle was smaller than that of the Caucasians, suggesting more prominent horizontal growth pattern in the Bangladeshis. However, when the male and female Bangladeshi subjects were compared, no significant differences were found in cephalometric craniofacial parameters between both sexes. In view of the findings of this study, it is evident that there are some fundamental differences in the craniofacial structure between Bangladeshis and the Caucasians. These differences should be kept in mind to facilitate better diagnosis, and orthodontic treatment for Bangladeshi patients. The results of the present study support the idea that a single standard of facial esthetics should not be applied to all racial and ethnic groups. DOI: http://dx.doi.org/10.3329/bjodfo.v2i1.15997 Ban J Orthod & Dentofac Orthop, October 2011; Vol-2, No.1, 11-15
A case of impacted upper canines of 18 years is presented. Any deviation from the normal sequence of development leads to the impaction of teeth. Although the best treatment alternative for impacted teeth is extraction, the same cannot be directly applied to canines. Since canines present with a high demand on aesthetic and functional requirements, alignment of impacted canines into the arch is the best treatment approach. In the present case, a fixed appliance mechanotherapy was used to bring the impacted canines into occlusion. Total treatment time was about 18 months. Post-treatment records demonstrated good vitality of the impacted tooth and the adjacent teeth. DOI: http://dx.doi.org/10.3329/bjodfo.v1i2.15985 Ban J Orthod & Dentofac Orthop, April 2011; Vol-1, No.2, 13-15
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